Littelfuse SIO-RTD Series - Manual

Protection Relays, Monitors & Systems
©2011 Littelfuse Startco Product Catalogue 37
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Temperature monitoring
SIO-RTD SERIES
Temperature Input Monitor
Description
The SIO-RTD is a microprocessor-based data-acquisition
system for measuring temperatures accurately with resistance
temperature detectors (RTDs) and for monitoring 4-20 mA
analog-output devices in industrial environments. RTD inputs
are noise-filtered and automatically calibrated for lead-length
compensation, ambient temperature, and other factors
providing accurate readings through the specified temperature
range for several types of RTD devices.
CATAlOg/ SYSTEm NUmbER CONTROl POWER, OUTPUT
SIO-RTD-02-00 24 Vdc, Modbus RTU
Ordering Information
FEATURES bENEFITS
8 Inputs Single module can collect multiple data points
CSA Class 1 Zone 2
Hazardous-location
Certified
Can be mounted in hazardous areas
Individually-selectable
Input Type
Flexible; can be used with Pt100, Ni100, Ni120, Cu10
RTD or 4-20 mA inputs
Conformal Coating Protects circuit boards against corrosion and moisture
Remote Monitoring Up to 1.2 km away from network master
Notch Filter Rejects noise from motor monitoring applications
Features & Benefits
Specifications
input Voltage 18 to 32 Vdc, 2W
dimensions H 87 mm (3.43”); W 112.5 mm (4.43”);
d 56 mm (2.2”)
Rtd types Pt100 (default), Ni100, Ni120, Cu10
Rtd Range -40 to 200˚ C with open and short detection
analog Range 4-20 mA
accuracy
(Pt100, ni100, ni120)
1˚ C
(cu10) 3˚ C
(4-20 ma) 0.1 mA
lead compensation Up to 20 Ω
communications Modbus RTU ®
conformally coated Standard feature
Warranty 5 years
Mounting DIN, Surface
Simplified Circuit Diagram
(Temperature Input Monitor)
SIO-RTD
RTD x 8
RS-485 Modbus RTU
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www.startco.ca/products/sio-rtd
For detailed wiring diagram, see page 86.